This report presents an up-to-date, detailed cost analysis of Acetaldehyde production from ethylene. The process examined is a typical two-step oxidation process. In this process, ethylene is oxidized by air to Acetaldehyde in tubular reactors, using a palladium/copper catalyst system. Acetaldehyde produced in a first reactor is flashed, so that an Acetaldehyde-water vapor mixture is separated and then distilled, yielding high-purity Acetaldehyde. The catalyst solution from the flash is oxidized in a second reactor and returned to the first reactor. Exhaust gases from both reaction steps are scrubbed for the recovery of residual Acetaldehyde.
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